Reproductive Ecology of Ocimum americanum L. and O. basilicum L. (Lamiaceae) in India

概要

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Ocimum americanum and O. basilicum bloom once a year. They produce flowers over a long period, a few flowers being produced each day. The flowers of both are short-lived (3-4 hours), bisexual, zygomorphic, and chasmogamic with anthers dehiscing in the bud stage. The open flowers offer nectar and pollen as rewards and are visited and sternotribically pollinated by day-flying animals. The blossoms are flag-shaped, and the reproductive organs are close to the lower corolla lip. The stamens and stigma show movements immediately after anthesis and remain for 20-30 minutes and this may cause self-pollination. Both species reproduce primarily through autogamy. Flowers are open during 5:30-13:30hr in O, americanum and during 7:00-13:00 hr in O. basilicum. Certain bee species like Apis florea, A. cerana indica, Amegilla sp., and Pseudapis oxybeloides, and the butterfly Surandra quercetorum are the most frequent and consistent visitors and can be pollinators for both plant species.
種生物学会の論文
1989-12-30